Ovary deeply 4-lobed with an ovule in each lobe, hairy; styles 2, gynobasic, almost equalling the corolla tube; stigmas capitate.
Sepals broad, ovate, forming a short tube, subequal, accrescent.
Corolla funnel-shaped, plicate, shortly and broadly 5-lobed.
Stamens 5, included; filaments linear, anthers oblong.
Leaves petiolate, oblong to oblong-lanceolate, entire.
Capsule 4-lobed; lobes subglobose, single-seeded.
Flowers small, solitary, axillary, peduncled.
Calyx shorter than the corolla tube.
Dwarf, prostrate perennial herbs.